1969 results about "Exit surface" patented technology

The invention provides an optical lens, and the optical lens sequentially comprises a first reflection element with positive focal power from an object side to an imaging surface, the first reflection element comprises an incident surface, a reflection surface and an emergent surface, the incident surface of the first reflection element is a convex surface, and the emergent surface of the first reflection element is a convex surface; included angles of 45 degrees are respectively formed between the reflecting surface of the first reflecting element and the optical axes of the incident surface and the emergent surface of the first reflecting element; the second lens has focal power; the third reflecting element has focal power and comprises an incident surface, a reflecting surface and an emergent surface; included angles of 45 degrees are respectively formed between the reflecting surface of the third reflecting element and the optical axes of the incident surface and the emergent surface of the third reflecting element; and the fourth lens has negative focal power. The optical lens provided by the invention adopts two reflecting elements with diopters as light path turning elements, so that a light path is turned twice to realize periscopic telephoto, and the optical lens has the characteristics of small volume, large aperture, large target surface and good performance.

The invention provides an optical lens, a lens module and electronic equipment, the optical lens comprises a first lens group, a first prism, a second lens group and a second prism which are sequentially arranged from an object side to an image side, and the first lens group has positive focal power and is used for receiving light rays and converging the light rays; the first prism comprises a first incident plane, a first reflecting plane and a first emergent plane, a first included angle between the first incident plane and the first reflecting plane is smaller than 45 degrees, and the optical axis of the first emergent plane coincides with the optical axis of the second lens group; the second lens group has negative focal power; the second prism comprises a second incident plane, a second reflecting plane and a second emergent plane, a second included angle between the second reflecting plane and the second emergent plane is smaller than 45 degrees, the first included angle is equal to the second included angle, and the optical axis of the second incident plane coincides with the optical axis of the second lens group. According to the optical lens, the second lens group is arranged between the first prism and the second prism, so that the optical lens has relatively high focusing capability and macro effect and relatively high imaging quality.

The invention discloses a mobile phone telephoto lens with reduced height. The mobile phone telephoto lens with reduced height sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a prism and an image surface from an object space to an image space, wherein the first lens has positive focal power; the second lens has positive focal power; the third lens has positive focal power; the fourth lens has negative focal power; the prism is provided with an incident plane, a first reflection plane, a total reflection plane, a second reflection plane and an emergent plane, and light emitted by the fourth lens enters the prism from the incident plane, is reflected at least once through the first reflection plane, the total reflection plane and the second reflection plane and then is emitted to the image plane through the emergent plane. According to the mobile phone telephoto lens with the reduced height, the large aperture, the small size, the long focal length and the high imaging quality of the lens can be realized.

A lighting device disclosed in an embodiment of the invention comprises a substrate; a light source disposed on the substrate; and a light guide member disposed on the substrate and the light source, wherein the light guide member includes an exit surface and a first reflective surface facing the exit surface, the first reflective surface includes a plurality of reflective portions having different heights with respect to an upper surface of the substrate, and each of the plurality of reflective portions may include a plurality of first surfaces inclined with respect to the upper surface of the substrate.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and, depending on whether glare control is not needed, the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening and if lessening glare is needed, also on the TIR outer reflective surface. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness.

Illumination device (10) for a motor vehicle headlamp for generating a low beam, wherein a vertical extension of the low beam extends along a VV-line from at least 0° down to at least −10° on the VV-line, said illumination device (10) comprises: —an optic body (100) comprising a common light input section (110), a light output section (130) and a shell surface (140) limiting the optic body (100), —a projection lens system (200) configured to project the light-rays in front of the illumination device (10), wherein the projection lens system (200) in combination with the optic body (100) are configured to generate the low beam illuminated by the projection lens system (200), wherein the optic body (100) comprises a first set of optically operative surfaces for guiding light-rays along a first light-ray path (LR1), wherein the first set of operative surfaces comprises a first and second light deflection surface (300a, 300b), and a first light exit surface (300c), wherein the first and second light deflection surfaces (300a, 300b) are arranged on the shell surface (140), and wherein the first light exit surface (300c) is arranged on the light output section (130), wherein light rays following the first light-ray path (LR1) are incident on the first deflection surface (300a) and are deflected to the second deflection surface (300b), and wherein light-rays incident on the second deflection surface (300b) are deflected to the first light exit surface (300c), and wherein light-rays emitted by the first light exit surface (300c) contribute to generate a first part of the low beam, and wherein the optic body (100) comprises a second set of optically operative surfaces for guiding light-rays along a second and a third light-ray path (LR2, LR3), wherein the second set of optically operative surfaces comprises a third deflection surface (400a) and a second light exit surface (400b), wherein the third deflection surface (400a) is arranged on the shell surface (140) and the second light exit surface (400b) is arranged on the light output section (130) separate from the first light exit surface (300c), wherein light-rays following the second light-ray path (LR2) are incident on the third deflection surface (400a) and are deflected to the second light exit surface (400b) for coupling out of the optic body (100), and wherein light rays following the third light-ray path (LR3) are incident on the second light exit surface (400b) directly from the common light input section (110), wherein light-rays emitted by the second light exit surface (400b) contribute to generate a second part of the low beam.

The embodiment of the invention provides an optical lens, a camera module and electronic equipment. The optical lens comprises a lens group and a light folding element located on the image side of the lens group. The lens group comprises at least one lens with positive focal power; the light folding element comprises a first part, a second part and a third part which are sequentially connected from the object side to the image side, the first part extends in the first direction, the third part extends in the second direction intersecting with the first direction, and the plane where the first direction and the second direction are located is perpendicular to the optical axis of the lens group; in the light folding element, the incident plane is located at the first part, the deflection reflection plane is located at the second part and is parallel to the optical axis of the lens group, and the emergent plane is located at the third part. Light enters the light folding element from the incident surface, is reflected for at least six times in the light folding element, and then is emitted out of the light folding element from the emergent surface; the at least six reflections include one reflection occurring on the deflecting reflective surface. The optical lens provided by the embodiment of the invention has both long focus and miniaturization.

An optical module includes a shell, a circuit board, a base, a laser assembly and a silicon optical chip. The laser assembly and the silicon optical chip are located on the base. The laser assembly includes an upper box, conductive substrates, laser chips and a light transmitting member. The upper box and the base are combined to provide a cavity. The cavity has an opening and a slot. The laser chips are located on the conductive substrates which are at least partially located in the cavity. The light transmitting member is disposed between the upper box and the base, and is configured to enclose the opening. Light exit surfaces of the laser chips are parallel to a light incident surface of the light transmitting member, and the light incident surface and a light exit surface of the light transmitting member are not parallel.

An optical member includes a light-transmitting light guide body and a light-shielding back cover. The light guide body has an incident part including a plurality of protruding incident prism portions, a reflective surface adjacent to the incident part, and an exit surface facing the incident part and the reflective surface. Each of the plurality of incident prism portions has an incident surface that allows an external scenery light to enter the inside of the light guide body and an adjacent surface adjacent to the incident surface. The back cover covers at least an entire area of the reflective surface of the light guide body across a gap, and abuts against the adjacent surface of a rear prism portion that is one of the plurality of incident prism portions adjacent to the reflective surface.

The invention provides an optical lens, which consists of four lenses and a reflecting element, and sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from an object side to an imaging surface along a light propagation direction, the image side surface of the second lens is a concave surface; the third lens has positive focal power, and the image side surface of the third lens is a convex surface; the fourth lens has negative focal power; the reflecting element is a prism, the prism comprises an incident plane, a reflecting plane and an emergent plane which are all planes, and light enters the prism from the incident plane along an optical axis, is reflected by the reflecting plane and exits from the emergent plane to an imaging plane; and an included angle of 45 degrees is respectively formed between the reflecting surface and the optical axis of the incident surface and between the reflecting surface and the optical axis of the emergent surface. According to the optical lens, the multiple lenses are combined and matched with the reflecting element, the periscopic long-focus effect is achieved, and the optical lens has the advantages of being small, light and thin.

An angle-adjustable lamp is provided, including a base shell and a lamp body. The base shell is provided with an accommodating cavity. The lamp body is rotatably mounted in the accommodating cavity and is in a damping fit with the accommodating cavity. The lamp body includes a lamp body main body and a rotating shaft having one end connected with the lamp body main body. The lamp body main body has a light exit surface for emitting light. An axis of the rotating shaft is not perpendicular to the light exit surface. An end of the rotating shaft away from the lamp body main body runs through the base shell and extends to an outside of the base shell. According to the present disclosure, the lamp body is rotatably mounted in the accommodating cavity, so that a light exit angle of the lamp body is adjustable.

A display selection button 10 comprises a light projecting unit 21, a light guide plate 13, a light receiving units 22, a control unit 30, and a printed sheet 14 and a LED 25. The light guide plate 13 has an incident surface 13a to which the light emitted from the light projecting unit 21 is incident, a plurality of prisms 13d that reflect incident light toward the side approaching or touching a finger and are provided at positions corresponding to push buttons 10c, and an exit surface 13b that emits the light reflected in the direction in which the finger approaches. The light receiving units 22 receive light emitted from the exit surface 13b and reflected from a finger. The control unit 30 detects the approach of a finger depending on the amount of light received by the light receiving units 22. The printed sheet 14 displays the desired numerals. The LED 25 emits light for displaying the desired numerals in the printed sheet 14.

The invention relates to the field of detection, in particular to a laser scanning system for substance detection, the system comprises a laser, a reflector, a refrigeration device, a Raman detection probe, a spectrometer, an objective table and a rotating platform, the laser is used for emitting detection laser; the objective table is arranged in front of the laser, and the detection laser irradiates and enters the to-be-detected substance from the incident plane; the Raman detection probe is arranged on the rotating platform, the rotating platform can rotate relative to the objective table, and the Raman detection probe faces the emergent surface of the substance to be detected; and the rotating platform drives the Raman detection probe to gradually change the receiving angle of Raman light from one side of the normal of the emergent surface of the to-be-detected substance, a plurality of Raman spectrum signals at different angles are respectively measured, and the to-be-detected substance is detected based on the change gradient of the Raman spectrum signals at different angles.

The utility model provides a scanning module and a scanning laser radar, and relates to the technical field of laser radars. The scanning module comprises a refracting optical element, the refracting optical element has a preset incident direction and a preset refracting direction, the refracting optical element comprises a plane mirror, the plane mirror has an emergent surface, the emergent surface is provided with a metasurface, and a refracting layer is formed on the metasurface; or, a microprism array is distributed on the emergent surface, and the microprism array is limited to form a refraction layer; wherein the refraction layer is used for refracting a light beam incident along a preset incident direction, so that the light beam is emitted along a preset refraction direction. According to the invention, by improving the scanning module of the laser radar, the stability of the scanning module can be improved, and a large pitching field angle can be scanned.

The invention discloses a super-condensation composite brightness enhancement film and a liquid crystal display backlight module, and particularly relates to the technical field of brightness enhancement films.The super-condensation composite brightness enhancement film comprises a core layer, an upper-layer brightness enhancement structure and a lower-layer brightness enhancement structure, the core layer is a multi-layer film made of poly (ethylene naphthalate) and a copolymer thereof, the upper-layer brightness enhancement structure is fixed to the top of the core layer, and the lower-layer brightness enhancement structure is fixed to the bottom of the core layer; the upper-layer brightening structure comprises a plurality of light gathering blocks, the light gathering blocks are distributed on the top of the core layer in a linear array mode, the light gathering blocks are arranged to be in a trapezoid quadrangular prism shape or a hexagonal pyramid shape, and the lower-layer brightening structure is fixed to the bottom of the core layer. The large-angle light of the incident surface is subjected to primary convergence through the plurality of inverse prism structures at the bottom of the core layer, and the large-angle light of the emergent surface is subjected to secondary convergence through the plurality of concave trapezoidal quadrangular prism-shaped or hexagonal pyramid-shaped light condensation blocks at the top of the core layer, so that the light loss is reduced, and the brightness of the backlight center is improved; and the hexagonal pyramid-shaped light condensation block can also improve the uniformity of the visual angle.

A display device, a head-up display and a transportation equipment are provided. In the display device, a first image source includes a first display area; a refraction element is configured to refract image light emitted from at least partial region of the first display area; the image light refracted by the refraction element is reflected by a first reflection element and propagated to an observation area to form a first virtual image; along a direction from a first end of the at least partial region to a second end of the at least partial region, an optical distance of at least part of the image light emitted from the at least partial region between a light incident surface of the refraction element and a light exiting surface of the refraction element gradually decreases.

The invention provides an optical lens, which is composed of four lenses and a refraction and reflection element, and sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power and a fourth lens with negative focal power from an object side to an imaging surface along a light transmission direction, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has negative focal power; the fourth lens has focal power, and the object side surface of the fourth lens is a convex surface; the refraction and reflection element comprises a light incident plane, a first reflection plane, a second reflection plane, a third reflection plane and a light emergent plane which are all planes, and the light incident plane, the second reflection plane and the light emergent plane are substantially the same plane; the optical axes of the optical lens comprise a first optical axis, a second optical axis, a third optical axis and a fourth optical axis. The optical lens provided by the invention can realize the excellent effect of periscopic long-focus shooting, and has one or more advantages of miniaturization, large image surface, large aperture, high-quality imaging and the like.

The invention relates to the technical field of aero-engine tests, in particular to an aero-engine turbine blade cooling effect test optical test structure which comprises optical glass, an outer casing and an optical channel pipe. The optical glass is located on the light-in side of the optical channel pipe, and the light-out side of the optical channel pipe faces the target blade. The outer casing is arranged on the outer side of the optical channel pipe in a sleeving mode, and a cooling channel is formed between the inner wall of the outer casing and the outer wall of the optical channel pipe so as to cool the optical channel pipe; a gas film ring is connected between the optical glass base and the light inlet side of the optical channel pipe in a sealed mode and located on the light outlet side of the optical glass. The optical glass base is provided with the cooling gas inlet, and the gas film ring is provided with the gas jet hole, so that the cooling gas performs jet sweeping on the light emitting surface of the optical glass and enters the optical channel pipe to cool the optical channel pipe, thereby improving the accuracy of the cooling effect test result of the turbine blade.

In the present invention, a vehicle headlight that emits light forward comprises: a light source; a first optical element that converts light emitted from the light source into parallel light; and a second optical element that has an incidence surface, an emission surface, and a side surface connecting the incidence surface and the emission surface. A first region of a lamp front surface is irradiated using light that is incident on the emission surface from the incident surface of the second optical element without being directed toward the side surface. A second region positioned to the left and / or right of the first region is irradiated at an illuminance lower than the illuminance of the first region by using the light that is incident on the emission surface after being reflected by the side surface.

The invention provides an optical lens. The optical lens sequentially comprises a front lens group and a reflecting element with focal power from an object side to an imaging surface, the front lens group is composed of three lenses, and the three lenses sequentially comprise a first lens with positive focal power, a second lens with negative focal power and a third lens with focal power from the object side to the imaging surface; the object side surface of the first lens is a convex surface; the object side surface of the third lens is a concave surface; the reflecting element comprises an incident surface, a reflecting surface and an emergent surface, and the emergent surface of the reflecting element is a concave surface; an included angle of 45 degrees is formed between the reflecting surface of the reflecting element and the optical axis of the incident surface and the optical axis of the emergent surface of the reflecting element; wherein the reflecting element adopts an integrally formed structure, and the refractive index Nd4 of the reflecting element meets the following conditions: 1.5 lt; nd4lt; Nd4lt; and 1.7. According to the optical lens, the scheme that the lens group is placed in front of the reflecting element is adopted, light can be shrunk to a greater extent, the light inlet amount is greatly improved, and the aperture is increased.

The invention discloses a free-form surface beam shaping device and method, and belongs to the technical field of light distribution regulation and control. The free-form surface beam shaping method provided by the invention comprises the following steps: firstly, generating a standardized incident and emergent surface grid distribution diagram, then respectively mapping the standardized incident and emergent surface grid distribution diagram to a free-form surface and a target surface, and then calculating normal vectors of corresponding sampling points on the free-form surface according to the directions of incident light and emergent light, sampling points on the free-form surface are calculated based on normal vectors, and the method can design a free-form surface optical element to regulate and control light distribution. By integrating the designed free-form surface optical elements into the optical element array, light distribution regulation and control can be carried out on multiple light beams. The design method has very strong universality, can design free-form surface light distribution regulation and control aiming at multiple light sources and multiple light beams, realizes application in a high-power application scene, and can realize accurate regulation and control on non-zero expansion quantity light beams.

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a prism having an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface and the optical axis being 45°; a stop; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power.

Disclosed in the present invention is a periscopic camera module. The periscopic camera module comprises a reflecting prism, an optical lens and a photosensitive assembly, wherein the reflecting prism is provided with an incident surface, a reflecting surface and an emergent surface which divert incident light, and the incident surface of the reflecting prism defines a light incident side of the periscopic camera module; the photosensitive assembly comprises a circuit board and a photosensitive chip connected to the circuit board, and the photosensitive chip has a photosensitive area and a non-photosensitive area surrounding the photosensitive area; and the optical lens and the reflecting prism are arranged in a photosensitive path of the photosensitive assembly, wherein the photosensitive area of the photosensitive chip is oriented towards the light incident side of the periscopic camera module so as to reduce the height of the periscopic camera module, so that the periscopic camera module is suitable for achieving a light and thin electronic device.

The invention discloses a curved prism lens and electronic equipment. The curved prism lens comprises a curved prism and a plurality of lenses from an object side to an image side, the curved prism comprises an incident surface, a reflecting surface and an emergent surface, the curved prism is equivalently used as a first lens, the incident surface of the curved prism is an object side surface of the first lens, and the emergent surface of the curved prism is an image side surface of the first lens; the plurality of lenses are arranged in sequence and are arranged between the curved prism and the imaging surface; wherein the first lens has positive focal power, and the focal length f1 of the first lens and the focal length f'of the curved prism lens meet the condition that f1 / f 'is larger than or equal to 0.5 and smaller than or equal to 2.3. According to the curved prism lens and the electronic equipment, the local thickness of the lens is reduced, miniaturization of the lens is facilitated, and the light and thin requirements of a user on the electronic equipment are met.

A lighting panel system (1, 100) comprising a luminous panel (2) comprising an array of LED nodes (3), each LED node of the array of LED nodes (3) comprising one or more LEDs (4), each of the one or more LEDs (4) comprising a light exit surface (5) and being configured to. in operation, emit light (15, 16), one or more first subsets (6) of the array of LED nodes (3) being spotlight nodes comprising collimating secondary optics (8), and one or more second subsets (7) of the array of LED nodes (3) being regular LED nodes not comprising collimating secondary optics, and a grid structure (9) arranged such that the light (15, 16) emitted by the LEDs (4) of the array of LED nodes (3) traverses the grid structure (9). The grid structure (9) comprises at least one diffusely reflecting surface (10), the grid structure (9) is constructed such as to allow one or more pre-defined beam angles of light (15) emitted by the LEDs (4) of the spotlight nodes to pass without being reflected by the grid structure (9), and the grid structure (9) is configured and arranged to hide the collimating secondary optics (8) of the spotlight nodes when seen from the point of view of a viewer (11) looking at the lighting panel system (1, 100).

The invention provides a preparation method of a perovskite cyan light illuminant film and a white light emitting diode, the light emitting surface of the white light emitting diode is provided with the perovskite cyan light illuminant film, and the perovskite cyan light illuminant film can reduce the color temperature of the white light emitting diode. The color rendering index of the white light emitting diode is improved; the perovskite blue light illuminant film absorbs blue light which is emitted by the white light emitting diode and has a wavelength less than 455nm, and compensates for the deficiency of blue light with a wavelength range of 470-520nm; the chemical formula of the cyan light illuminant is CsPb (BrCl) 3: Ba; wherein Ba is a doped barium ion. According to the perovskite blue light illuminant film, the color rendering index of a WLED is improved, and meanwhile blue light emitted by an LED chip is absorbed, so that harm to a human body is reduced.

A front light module which includes a light guide plate, a light-emitting component and a barrier layer is provided. The light guide plate has a light incident surface and a light exiting surface which is adjacent to the light incident surface, and the light-emitting component emits the light toward the light incident surface. The barrier layer which includes the materials with silicon bonding is located on the light exiting surface of the light guide plate. The water vapor transmission rate of the barrier layer is lower than 0.1 g / m2 / day.

A water-mist-penetrating three-wavelength temperature measurement device and method for a high-temperature environment, the device including a housing, a three-waveband beam splitting detection module and a computing unit, the housing provided with an optical aperture, the three-waveband beam splitting detection module arranged in the housing, and including a trichroic prism, three radiation detection assemblies, the trichroic prism able to receive the light signals entering via the optical aperture, and emit radiation signals having different wavelength bands through three emission faces, respectively; the three radiation detection assemblies able to receive radiation signals having different wavelength bands emitted from corresponding emission faces, and convert them into electrical signals, respectively; the computing unit able to receive the electrical signals, and perform calculation and analysis to determine a temperature value of a target to be measured; the method including: temperature measurement data acquisition, data fusion, parameter tuning, and model application.

A projection device and a projection system are provided. The projection device includes a light source, an optical modulating assembly, and a lens. The light source includes a laser and at least one optical waveguide. The laser includes first light emitting chips, second light emitting chips, and third light emitting chips. One of the at least one optical waveguide is located on a light outgoing side of the third light emitting chips. Each optical waveguide includes a light incident surface, a light outgoing surface, a light incident portion, and a light outgoing portion. The light incident surface and the light outgoing surface are opposite to each other in a thickness direction of the optical waveguide. The light incident portion is configured to introduce laser light incident thereon into the optical waveguide. The light outgoing portion is configured to transmit the laser light out of the optical waveguide.